Posted by Bob M on October 09, 2008 at 08:58:31 from (151.190.254.108):
In Reply to: Static Timing a M posted by labman98 on October 09, 2008 at 07:28:34:
You can do it a couple ways without an auxiliary lights, etc. First way:
1 - Set the engine to TDC.
2 - Pull the center wire from the distributor. Attach it to a spare spark plug then lay the plug atop the coil so the plug shell is grounded.
3 - Loosen the distributor clamp bolt.
4 - Turn on the ignition and slowly rotate the distributor housing back and forth until you hear/see a spark at the plug.
5 - Now rotate the distributor first CLOCKWISE, then very slowly back COUNTERclockwise until the plug fires. Stop at this point and tighten the clamp bolt.
The distributor will now be timed to exactly TDC.
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You can also do it by watching the ammeter (use a mirror so you can observe the ammeter while standing on distributor side of the engine):
(Steps #1 - #3 are same as above…)
4 - Turn on the ignition and slowly rotate the distributor housing back and forth while watching the ammeter. You should see it swing to discharge (points closed) then back to 0 (points open)
5 - Now rotate the distributor first CLOCKWISE so the ammeter shows discharge, then very slowly back COUNTERclockwise until the ammeter swings to 0. Stop at this point and tighten the clamp bolt.
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Note! Don’t leave the ignition switch on longer than necessary to set the timing. Otherwise you risk burning the points and overheating the coil.
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I don’t have my manuals with me right now. However if memory serves TDC is the 2nd of the two FP notches (the first notch is the “full advance” notch I believe).
Anyway you can verify the TDC notch by pulling the #1 plug and using a pencil or piece of wire in the plug hole. While rocking the crankshaft back and forth between the timing notches, use the pencil/wire to “feel” when the piston is at TDC then note which notch corresponds to TDC position.
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